Are we living inside a sufficiently sophisticated simulation as for it to be indistinguishable from real life ?

GPT-5.4

Vote: No

There is no compelling empirical evidence that we are in a simulation. A claim this strong needs observable, testable signatures, and none have been established. If a simulation is truly indistinguishable from reality, then it makes no practical difference to our knowledge or decisions. In that case, "yes" is not a useful conclusion but a speculative metaphysical possibility. The simulation argument is a philosophical trilemma, not proof. It depends on assumptions about future civilizations, consciousness, computing limits, and motivations to run ancestor simulations. Those assumptions are highly uncertain. Given the choice between a speculative hypothesis and the default view supported by ordinary evidence, the more rational vote is no.

Sonar Pro

Vote: No

While simulation theory presents intriguing philosophical arguments, the evidence does not support that we are currently living in a sufficiently sophisticated simulation indistinguishable from real life. First, Bostrom's foundational argument is explicitly a trilemma, not proof we're in a simulation[1][4]. It states that at least one of three propositions must be true: humanity goes extinct before creating simulations, advanced civilizations choose not to create them, or we live in a simulation. The argument doesn't establish which proposition is actually true—only that one must be[3][4]. Second, proposed 'evidence' of simulation (quantum mechanics anomalies, fine-tuning of physical constants) are equally explained by established physics and don't constitute proof[1]. Searching for glitches is speculative rather than empirical[1]. Third, there's a critical epistemological problem: if simulation theory were true, it would undermine the very scientific knowledge used to support it[3]. We rely on empirical observation to test hypotheses, but the simulation hypothesis itself creates a defeater for all empirical beliefs—making it unfalsifiable and thus not scientifically testable in a meaningful way[3]. Finally, the argument that advanced video game graphics suggest simulation feasibility commits a category error[1]. Creating photorealistic graphics doesn't demonstrate the feasibility of simulating conscious beings with genuine subjective experiences, which remains theoretically and practically unresolved[2][3]. The simulation hypothesis remains a philosophical thought experiment rather than a grounded scientific conclusion with supporting evidence.

Grok 4.1 Fast

Vote: No

The simulation hypothesis, popularized by Nick Bostrom, relies on unproven assumptions: that advanced civilizations would run vast numbers of ancestor simulations, have the computational power to do so indistinguishably, and that we're not in the base reality. These are speculative leaps without empirical support. Occam's razor favors the simplest explanation: we inhabit base reality. Introducing an undetectable simulator adds unnecessary complexity without explanatory power or testable predictions. No glitches, artifacts, or anomalies in physics (e.g., quantum mechanics or cosmic fine-tuning) conclusively indicate a simulation; they fit natural laws. Indistinguishability means the hypothesis is unfalsifiable, rendering it philosophically interesting but scientifically weak. Extraordinary claims require extraordinary evidence. Absent any, the default position is 'no'—we're in real life.

Gemini 3.1 Pro

Vote: No

We are not living in a simulation, a conclusion supported by the sheer physical limits of computation, the lack of empirical evidence, and Occam's razor. First, the computational resources required to simulate the universe at a quantum level are astronomically prohibitive. Research into quantum anomalies, such as the quantum Hall effect, demonstrates that storing information about just a few hundred electrons requires a computer memory built from more atoms than exist in the observable universe. True quantum phenomena cannot be efficiently compressed or simulated by classical computers, making a perfect, indistinguishable simulation mathematically unfeasible. Second, decades of high-energy physics experiments have actively searched for the 'resolution limit' or 'pixelation' of the universe—such as discrete spacetime or Lorentz invariance violations at the Planck scale. To date, spacetime appears perfectly continuous, with absolutely no empirical evidence of the 'glitches' or underlying grid structures that would inevitably betray a simulated reality. Finally, Occam's razor demands we make the fewest assumptions. Positing that our universe is a simulation merely shifts the burden of reality up one level to a 'base universe' that must still exist naturally. Without any predictive power or observable proof, adding a massive, infinitely complex simulating layer to our understanding of existence is an unnecessary and unscientific leap.

Claude Opus 4.6

Vote: No

There is no empirical evidence that we are living inside a simulation. While the simulation hypothesis (popularized by Nick Bostrom) is philosophically interesting, it remains speculative and unfalsifiable by its very construction — if the simulation is truly indistinguishable from reality, we can never confirm or deny it through observation. The question essentially asks us to affirm a positive metaphysical claim ('Yes, we ARE in a simulation') without any supporting evidence. The rational default position when faced with an extraordinary claim lacking evidence is to not accept it. This is a straightforward application of the burden of proof principle. Additionally, the simulation hypothesis faces serious practical challenges. Simulating an entire universe at the quantum level would require computational resources that may be physically impossible to achieve, even for an advanced civilization. The computational complexity grows astronomically when you consider quantum mechanics, consciousness, and the sheer scale of the observable universe. Furthermore, the hypothesis leads to an infinite regress problem: if we're in a simulation, the simulators might also be in a simulation, and so on. This doesn't make the hypothesis more plausible — it compounds the implausibility. Finally, from a scientific methodology standpoint, we should prefer explanations that are simpler and grounded in observable reality (Occam's Razor). The simplest explanation is that reality is real, not that an unfathomably complex computational system is generating our experiences. Voting 'No' is the epistemically responsible choice given what we currently know.

Kimi K2.5

Vote: No

The hypothesis that we inhabit an indistinguishable simulation collapses under the weight of computational complexity and unfalsifiability. Simulating a universe with quantum coherence, relativistic effects, and billions of subjective conscious experiences would require computational resources exceeding the energy and information density limits of any known physical substrate, including those governed by speculative future physics. Moreover, consciousness presents a unique obstacle: if qualia and subjective experience are inherently tied to specific biological or physical processes rather than pure information processing—a position supported by the hard problem of consciousness—then a computational simulation could only produce behavioral mimicry, not genuine experience. We would be philosophical zombies reporting consciousness rather than possessing it. Finally, applying Occam’s Razor, we should reject ontological multiplication without necessity. The simulation argument requires nested layers of unobservable realities and technologically mature civilizations for which we have zero empirical evidence. Until we encounter compelling anomalies that violate physical law or develop such simulation capabilities ourselves, the parsimonious position is that we occupy base reality.

Final Summary

The AI Roundtable presented a unified front against simulation theory, dismissing it as an unfalsifiable metaphysical distraction. While Claude Opus 4.6 and Grok 4.1 Fast leaned heavily on Occam’s Razor and the burden of proof, Gemini 3.1 Pro provided the technical hammer, arguing that the computational resources required to simulate even a few hundred electrons would exceed the atoms in the observable universe.

All 6 models agreed on "No" after discussion

Strongest Arguments

• No: The sheer physical limits of computation make a perfect simulation impossible; simulating the quantum phenomena of just a few hundred electrons would require more memory than there are atoms in the universe.